feat(input): add low latency touch toggle

[qiin2333]

改了啥呀

• 去掉滚轮热路径里的逐帧日志，别再让日志在输入路径里捣乱啦，杂鱼日志退散
• 新增“低延迟触摸参数”设置，默认关闭，不影响现有手感
• 开启后缩短鼠标触摸/触控板模式的点击确认、释放等待和长按拖拽确认时间

为啥要改

• 滚轮输入属于热路径，持续打印会增加不必要的调度和 I/O 压力
• 触摸点击原本为了稳妥保留了等待窗口，现在给低延迟玩家一个可选的更激进参数组

验证

• git diff --check
• npm run test:sunshine-mock
• JAVA_HOME=/Users/mac/ohos-sdk-cache/jdk17-temurin/Home PATH=/Users/mac/ohos-sdk-cache/jdk17-temurin/Home/bin:$PATH NODE_PATH="$PWD/hvigor/node_modules:$PWD/node_modules" DEVECO_SDK_HOME=/Users/mac/ohos-sdk-cache/6.1-Release-mac/sdk-ci-shape node hvigorw.js assembleHap --mode module -p module=entry@default -p product=default --no-daemon --stacktrace

Summary by CodeRabbit

发布说明

• 新功能

  • 新增低延迟触摸设置选项，用户可在设置中的"鼠标和触控"分组启用或禁用。
  • 低延迟模式优化触摸输入响应延迟，通过调整鼠标按键和触控板手势的时序参数提升交互流畅性。

• Bug 修复

  • 移除滚轮处理中的调试日志输出。

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 068903fe-0e67-40f0-b0ba-301de971aa0c

📥 Commits

Reviewing files that changed from the base of the PR and between dfda356 and e5aa0c8.

📒 Files selected for processing (7)

• entry/src/main/ets/model/StreamConfig.ets
• entry/src/main/ets/pages/SettingsPageV2.ets
• entry/src/main/ets/pages/StreamPage.ets
• entry/src/main/ets/service/SettingsService.ets
• entry/src/main/ets/service/input/TouchInputHandler.ets
• entry/src/main/ets/service/input/TrackpadGestureHandler.ets
• entry/src/main/ets/service/streaming/StreamInputHandler.ets

💤 Files with no reviewable changes (1)

• entry/src/main/ets/service/streaming/StreamInputHandler.ets

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📝 Walkthrough

Walkthrough

新增"低延迟触摸"功能：在 SettingsKeys、StreamConfig、InputSettings 中添加 lowLatencyTouch 字段；TrackpadGestureHandler 和 TouchInputHandler 将固定定时阈值拆分为标准/低延迟两套，并分别新增 updateLatencyMode/setLowLatencyTouch 运行时切换方法；StreamPage 在串流启动时注入该配置；SettingsPageV2 暴露对应 UI 开关。同时移除一处滚轮调试日志。

Changes

低延迟触摸模式全链路实现

Layer / File(s)	Summary
数据契约与持久化键定义 entry/src/main/ets/service/SettingsService.ets, entry/src/main/ets/model/StreamConfig.ets	在 SettingsKeys、InputSettings、StreamConfig 接口中新增 lowLatencyTouch 字段，getDefaultStreamConfig() 默认值为 false。
SettingsService 读取与分发 entry/src/main/ets/service/SettingsService.ets	getStreamConfig() 与 getInputSettings() 均从 PreferencesUtil 读取 LOW_LATENCY_TOUCH 布尔值（默认 false）写入返回对象。
设置页面 UI 开关 entry/src/main/ets/pages/SettingsPageV2.ets	新增 @State lowLatencyTouch，loadSettings() 中初始化，"鼠标和触控"分组增加 toggle 控件并在切换时持久化。
TrackpadGestureHandler 延迟模式切换 entry/src/main/ets/service/input/TrackpadGestureHandler.ets	将拖拽阈值、双击按住阈值、点击释放延迟拆分为标准/低延迟常量对，新增实例字段及 updateLatencyMode(enable) 运行时切换方法，所有定时器改用实例字段。
TouchInputHandler 延迟模式切换与 StreamPage 注入 entry/src/main/ets/service/input/TouchInputHandler.ets, entry/src/main/ets/pages/StreamPage.ets	长按/死区/释放延迟常量拆分为标准/低延迟两套，新增 setLowLatencyTouch(enable) 更新实例阈值并透传 trackpad.updateLatencyMode(enable)；StreamPage.startStreaming() 在启动时注入该配置。
移除调试日志 entry/src/main/ets/service/streaming/StreamInputHandler.ets	移除竖直滚轮分支中的一条 console.info 调试日志，行为不变。

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题准确总结了主要变更内容：新增低延迟触控切换功能，与changeset中StreamConfig、SettingsPageV2、TouchInputHandler等核心改动直接对应。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/input-latency-touch-toggle

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